Reinforced concrete building.



No. 875,804. PATENTED JAN. 7, 1908. G. M. GRAHAM. REINFORCED CONCRETE BUILDING APPLICATION FILED AUG. 22

2 SHEETS-SHEBT l.

No. 875,804. PATENTED JAN. 7, 1908.

" G. M. GRAHAM.

REINFORCED CONCRETE BUILDING.

2 SHEETSSHEET 2.

APPLICATION FILED AUG. 22 1907.

"UNITED STATES PATENT OFFICE.

GEORGE M. GRAHAM, OF CHICAGO, ILLINOIS, ASSIGNOR TO G. A. EDWARD KOHLER, OF

. CHICAGO, ILLINOIS.

Specification of Letters Patent.

Patented Jan.7,1908.

Application filed August 2% 1907. Serial No. 389,653.

To all whom it may concerm Be it known that I, GEORGE M. GRAHAM, a citizen of the United States of America, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Reinforced Concrete Buildings, of which thefollowing is a specification.

Thisinvention relates to that type of reinforced concrete structures in which the reinforcing members consist of a series ofwire strands under initial uniform tension, an example of which is set forth in my prior Letters Patent No. 865,490, of September 10, 1907. And the present improvement has for its object to provide a simple and eflicient system and means for forming vertical walls or partitions in such type of concrete structures, and which is adapted to afford a ready and eiiective means for straining the wires forming the reinforcing portion of-the wall or partition, and so that such wires will provide the necessary strength and rigidity to a minimum thickness of the concrete forming the main body of such wall or partition, all as will hereinafter more fully appear.

In the accompanying drawings :Figure 1, is a vertical section, on line xa: Fig. 2, of a portion of a building structure illustrating the system ofconstruction involved in the present invention. Fig. 2, is a horizontal section of the same. Fig. 3', is an enlarged detail vertical section on line m---:c Fig. 2.

Similar niimerals of reference indicate like parts in the diii'erent views.

Referring to the drawings, 1 represents a series of posts or columns supported on the usual foundation walls or piers, and of any usual and suitable cross section, preferably the tubular form shown in Fig. 2.

2 are a series of horizontal tubular girders or beams arranged in right angle relation, With their meeting ends secured together and toadjacent posts 1' by suitable fittings. Four of such girders secured together, with the accessories hereinafterdescribed, constitute a single unit of the skeleton reinforce; frame of a building structure additional units utilizing in their formation the adjacent girder or girders of such first mentioned unit, as fully set forth,in my aforesaid prior Letters Patent No. 865,490. 3 is a skeleton wire centering or webbing, formed by continuous wrap ings of a single wire around said mar 'ina frame in spaced relation and preferably in crossed or opposite directions to provide an open web like center for the frame, and to which is attached any usual and suitable form of sheet lathin 4 to. receive the mass of concrete from whic the main body of the flooror other portion of the structure is formed.

The uppermost web of the aforesaid centering 3, as fully set forth in my aforesaid application will have a dished form, the

curve of which approximates a catenary, and around which the mass of concrete is applied with its upper surface horizontal as illustrated in Figs. 1 and 3'. In such construction the perforated lathing 4 will have a hori zontal position in the finished floor and to such end will have an initially dished form, and secured in such dished form to the wire web or center 3, so that with the dishing of said wire web, the lathing will be brought to the above mentioned horizontal or flat condition.

- The novel and material part of the present system comprises in connection with a reinforced concrete structure substantially as abovedescribed, a partition structure formed as follows :5, are a series of vertical reinforcing wires attached at their upper ends to the uppermost web of the wire centering 3 before described; Such series of wires hang in a loose or pendent condition until. the dish has been imparted to the aforesaid uppermost web, and the concrete a lied, to complete the floor of which the sai web forms a component part. The lower ends of such series of vertical wires 5 are then attached to the uppermost web of the wire centering of the next floor beneath, while the'said web is is an hndished condition, and revious to the dishing thereof and the app ication of the mass of concrete to form such second floor. In the construction above described, with the dishing of the last mentioned web and with the application of the concrete mass, a tension stress is imposed on the series of vertical reinforcing wires 5, so that they will? afford the required stability to the finished partition and permit of the iormation'of a very thin partitionpossessing the requisite strength.

-the floors a the buildingin a downward direction, w 'ch At the same time that the lower ends of the aforesaid series of wires 5 are attached to the uppermost wire Web of such second floor, the upper ends of a second'series of vertical rein-- forcing wires 5 are attached in adjacent relation to the aforesaid lower ends of the first series of wires-5 .to constitute a portion of a x has been found to be a desirabl'e'manner of stantially as set forth.

erection both from an economical mercial standpoint.

and a com- 6 area seriesoftransverse wires secured to the vertical series of reinforcingwires 5 in any usual and suitable manner, and adapted to impart additional stiffness to such wires.

7 are sheets of perforated lathing secured to .the aforesaid series of reinforcing wires 5 to receive the mass of concrete or the like and Having thus fully described my said invention what I claim as new and desire to secure by Letters Patent, is

1. The-herein described method of forming partitions in reinforced concrete structures, which consists in initially securing the vertical reinforcing partition wires at their upper ends to the wire reinforce of an upper concrete floor, att .ching the lower ends of said vertical partition wires to the wire reinforce of a floor beneath, imparting dished form to such floor reinforce by an application of the floor concrete to impose a tension'stress upon the vertical partitl'on wires so as to take up the slack-thereof, and applying the partition c'oncreteto said vertical partition wires, subform the completed partition.

2. The herein described method of forming partitions in reinforced concrete structures,- which consists in initially securing the vertical reinforcing partition wires at-their upper ends to the Wire reinforce of an upper concrete'floor, imparting a dished form to such floor wire: reinforce by an application of the floorconcrete, attaching the lower ends of said. vertical partitionwires to the wire reinforce of a floor beneath, impartingiadighed form-to such floor reinforce by an liestIOIE'Of'tl'IQ fl OI concrete to impose a tension stressfiponthe vertical partition wires so as to-take up the slack thereof, and applying the partition concrete to said verticalparti- 3. In a reinforced:cnucrefepsrencture the combination of a series of'horiznntal marginal frames, skeleton wire centerings attached thereto and having a dished'forni, vertical reinforcing Wires attached at their respective endsto said skeleton centerings, and a plastic mass applied to saidvertical wires to consti--- tute a partition, substantially as set forth.

1 4. In a'reinforced concrete structure, the combination of a series of horizontal ma'rgi-j nal frames formed of round tubing, skeleton wire fcenterings having webs formed by strands of wire Wound around the circular periphery of the frame tubing the uppermost webs of said centerings having a dished form, vertical reinforcing wires attached at their res ective ends to said skeletoncenterpartition, substanstrands of wire wound around the circular periphery of the frame tubing, the upper-.

most webs of said centerings having. a dished form, vertical reinforcing wires attached at their respective ends to the dished webs aforesaid, and a plastic mass applied to said vertical Wires to constitute a partition, sub,

stantially as set forth. 6. Ina reinforced concrete structure, the,

- combination of a series of horizontal marginal frames, skeleton wire centerings attached thereto and having-a dished form, vertical reinforcing wires attached at their respective ends to said skeleton centerings, transverse connecting wires attached to said vertical wires, and a plastic mass applied to said vertical wires to constitute a partition, substantially as set forth.

7. In areinforced-concrete structure, the combination of a series of horizontal marginal framesformed of round tubing, skeleton wire centerings having webs formed by strands of wire wound around the circular periphery of the frame tubing, the uppermost webs of said centerings having a dished form, vertical reinforcing wires attached at their respective ends to sald skeleton centerings, transverse connecting wires attached to said vertical wires, and a plastic massapphed to said vertical and transverse Wiresto constitute a partition, substantially as set forth.

8. In areinforced concretestructure', the combination of a'series of horizontal marginal framesskeletoii wire centerings attached theretoand having. a dished form, vertical reinforcing Wires. attached attheir respective ends to said skeleton centerings, "transverse connecting WELIQS attached to said vertical wir'e s, perforated lathing attached, to said partitlcn wires, and a plastic massapplied to, said wires and lathing' to constitute a partition, substantially as setlfirth.

. 9. In a reinforced concrete structure, the

combination of a series'of horizontal marginal frames formed of round tubing, skeleton Wire centerings having Webs formed by mass applied-to said wires and 'lathing to 10 strands of wire wound around the circular constitute a' partition, substantially as set' periphery of the frame tubing, the up erforthl most w'e'bs'of said centeringshaving a dis 16d Signed at Chicago, Illinois, this 12th day form, vertical reinforcing wires attaclied at i of August 1907.

their respective ends to said skeleton centerings, transverse connecting Wires attached to said'vertioal wires, perforated lathing attaolie'duto'said partition wires, and a plastic GEORGE" M. GRAHAM. Witnesses:

ROBERT B RNs, FRANK S'.'REID; 

